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CVE-2026-123817

🗓️ 09 Nov 2026 21:17:58Reported by MendType 
mend
 mend
🔗 www.mend.io👁 7 Views

AIOHTTP WebSocket reader overhead allows DoS via excessive memory consumption.

Related
Detection
Refs
ReporterTitlePublishedViews
Family
cgr
Chainguard
CVE-2026-123817 vulnerabilities
10 Nov 202622:55
–cgr
circl
Circl
CVE-2026-123817
9 Nov 202621:23
–circl
cve
CVE
CVE-2026-123817
9 Nov 202621:17
–cve
cvelist
Cvelist
CVE-2026-123817 AIOHTTP WebSocket frame reassembly permits excessive memory consumption from tiny reads
9 Nov 202621:17
–cvelist
debiancve
Debian CVE
CVE-2026-123817
10 Nov 202614:59
–debiancve
euvd
EUVD
EUVD-2026-120454
9 Nov 202621:17
–euvd
github
Github Security Blog
aiohttp: Multiple instances of excessive or unbounded memory/CPU use
19 Oct 202617:07
–github
nvd
NVD
CVE-2026-123817
9 Nov 202622:18
–nvd
osv_cga
osv_cga
CGA-26X7-FW4W-87FV
20 Oct 202612:23
–osv_cga
osv_cga
osv_cga
CGA-5FX3-3948-FPQW
20 Oct 202614:06
–osv_cga
Rows per page
Vulners
Node
OR
aiohttpaiohttpRange3.11.17–3.14.4
aiohttpaiohttpRange3.0.2–3.14.4
aiohttpaiohttpRange3.0.0b0–3.14.4

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10 Nov 2026 09:20Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.17.5
CVSS 48.7
EPSS0.00328
7